Improved quartz-crusher



g I @anni (Mila.

'of the hopper y' fits.

JOSEPH REPETTI, OF PHILADELPH IA, PENNSYLVANIA. Laws Para: No. 89,434, dated April 27, 1869.

IZMPRO'VED. QUARTZ-CRUSHER.

Be it known that I, JOSEPH REPETTI, of Philadelphia, in the county of Philadelphia, and State of Pennsylvania, have invented certain new and useful Improvements 0n a Quartz-Crusher; and I do hereby declare that the following is a full, clear, and exact description ofthe construction and operation of the same, reference being had to the annexed drawings, making part of this specification, in which- Figure 1 is a perspective view.

Figure 2 is a vertical section of the quartz-crushes Figure 3 shows how the lifting-arms are guided, and the stampers revolved.

Figure 4 is an isolated perspective view of the camwheel.

'Ihe machine has three tables, a, b, and c, connected and supported by the columns 'cl d ll, figs. l and 2.

The lower table, a., has a cylindrical pin, a2, at its centre, on which the stamping-pot x revolves.

'An annular channel, j, concentric with the pin a2, is provided, to allow the bevel-wheel e, which is cast or fastened on the lower side ot'x, to revolve freely in it.

Atthe point K, this channel is out entirely through, to allow the pinion e2 to engage with the wheel c.

The stamping-pot z is provided, on its top rim, with shoulders, i and i2, to receive wire-cloth cylinders, q and g2, as shown in perspective, in iig. 1, (part broken out to show interior,) and indicated by dotted lines in iig. 2.

The outside ange of x projects a considerable distance into the annular vessel s, which is set on the table a, concentric, or nearly so, with x.-

In the centre of a: is acone, @which not only forms the bearing for the pin a2, but also, in connection with the sloping rim of x, serves to bring the ore or quartz continually upon the chilled-iron ring V, which is cast separately, and can be renewed as occasion requires.

The central table, b, has holes,for the purposeof guiding the stamping-rods peqnidistant from the centre of the table, and also equidistant from each other, as in tig. 3.

Another large hole is made in the centre of the table, to allow the pipe m to pass through until the shoulder n rests firmly on the table.

rlhis shoulder carries the cam-wheel n2, figr 4, which consists of a hollow cylinder, whose lower end is provided with teeth, and its upper edge shaped properly as a lifting-cam.

The upper portion of the pipe rml has rectangular grooves, 'r fr lr, figs. 2 and 3, running parallel with the said pipe.

The upper table, c, is similar to b, but has, in addition, an annular groove, w, in which the outside shell The interior of the hopper is conical, the small end of the truncated cone entering the pipe m.

By this construction of the hopper, the annular space z, ig. 2, is formed, allowing the stamp-rods to use.

The stamps p, which I usdally make of chilled iron, are fastened to the lower end of the cylindrical stamp-A rods p, by any well-known method.

The raising of the stamps is effected by means of the lifting-arms p3 p3 p3, figs. 1, 2, and 3, which carry two friction-rollers l and 2; 2 bearin g on the inclines of n2, and 1 working 1n the grooves 'fr rr' fr, on the vertical pipe m, keeping the arm from revolving on the stamprod 11, as the side-strain of the cam comes upon it.

The lifting-arms are kept from sliding lengthwise; anda can be adj usted to any desired height on pl, by means of the collars 3 3 3, which are tightened, and kept in position by the set-screws 4 4 4, which are countersunk in the lower collar.

To cause the stamps' to wear equally, theyarvamade to revolve intermittently. For this purpose, the lower collars, 3, are provided with teeth, andthe cam-wheel n2 has also teeth o o o o, iigs. 3 and 4.

' As the cam-wheel revolves, its teeth vo engage with those on the collars, 3, lig.' 3, revolving the latter, and consequently, the stamp, through the space of one tooth.

rlhe motive-power is applied to the pulley 5, or its equivalent, through the shaft 6, whose bearing is in the centre table, and thence to the bevel-pinion 7, which drives the cam-wheel, from which the stamps derive their motion.

The shaft 6 carries, also, a mitre-wheel, 8, gearing into another mitre-wheel, 9, on the vertical shaft 10, on which endless screw 1l is either cut or fastened.

This screw drives the worm-wheel, 12, on the shaft 13, the bearings of which are fastened to the lower side of the table c.

The shaft, 13, carries the bevel-pinion e2, which imparts a slow rotary motion to the stamp-pot x, by means of the bevel-wheel e.

The operation of the machine is as follows:

The ore or quartz is dropped into the hopper y, and falls through the annular space formed by the pipe 'm and cone t, upon the chilled-iron ring V, where the stamps operate upon it. Water being admitted into the pot x, the pulverized ore is carried through the wire-cloth cylinders g and g2, into the vessel s, from whence it is removed by the valve or cock 15, fig. l.

The machine may be used, also, for the dry-stamp` ing process.

is of such a shape, that it will not lift the stamps immediately after they have dropped, allowing them to rest, for a certain period, upon the ring c. But, as the ring revolves continually with the pot x, it follows, that a certain grinding. action between the stamps and ring is effected. Y

By this general construction of the machine, all the grit and dust are excluded from the main workingparts and bearings.

'Ldo'not claim devices for raisingl and revolving the By reference lto iig. 4, it will be seen that the camA stamping-rods of quartz-crnshersby means of a heifr, when combined and arranged with the cylindrical ical can); but

W'hzit I do claim, is-- 1. The arrangement herein described, of the carn- Wheel n, with its ings o, in combination with the cylindrical stamp-collar p3, when provided with ratchet collars, for the purpose of imparting rotary motion to the said rods, and causing the same to remain, for a time, ai; rest upon the ring o, as herein described.

2. The pipe m, with i12/s shoulders, and grooves 1 lr' stamps p', as described.

3. The arrangement herein described, of tables a b c, hopper fy, pipe m, toothed cam-wheel ne, stamps p, pob x, shafts 6 and 10, wheels 8, 9, and 7, and E2, screw 1l, mid Worin-Wheel 12, Lil constructed as set forth and shown.

Witnesses: JOSEPH REPETTI.

J. R. MAssnY, JAMES MQNEILL. 

